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// Copyright 2024 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package keying_test
import (
"math"
"testing"
"code.gitea.io/gitea/modules/keying"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.org/x/crypto/chacha20poly1305"
)
func TestKeying(t *testing.T) {
t.Run("Not initalized", func(t *testing.T) {
assert.Panics(t, func() {
keying.DeriveKey(keying.Context("TESTING"))
})
})
t.Run("Initialization", func(t *testing.T) {
keying.Init([]byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07})
})
t.Run("Context seperation", func(t *testing.T) {
key1 := keying.DeriveKey(keying.Context("TESTING"))
key2 := keying.DeriveKey(keying.Context("TESTING2"))
ciphertext := key1.Encrypt([]byte("This is for context TESTING"), nil)
plaintext, err := key2.Decrypt(ciphertext, nil)
require.Error(t, err)
assert.Empty(t, plaintext)
plaintext, err = key1.Decrypt(ciphertext, nil)
require.NoError(t, err)
assert.EqualValues(t, "This is for context TESTING", plaintext)
})
context := keying.Context("TESTING PURPOSES")
plainText := []byte("Forgejo is run by [Redacted]")
var cipherText []byte
t.Run("Encrypt", func(t *testing.T) {
key := keying.DeriveKey(context)
cipherText = key.Encrypt(plainText, []byte{0x05, 0x06})
cipherText2 := key.Encrypt(plainText, []byte{0x05, 0x06})
// Ensure ciphertexts don't have an determistic output.
assert.NotEqualValues(t, cipherText, cipherText2)
})
t.Run("Decrypt", func(t *testing.T) {
key := keying.DeriveKey(context)
t.Run("Succesful", func(t *testing.T) {
convertedPlainText, err := key.Decrypt(cipherText, []byte{0x05, 0x06})
require.NoError(t, err)
assert.EqualValues(t, plainText, convertedPlainText)
})
t.Run("Not enougn additional data", func(t *testing.T) {
plainText, err := key.Decrypt(cipherText, []byte{0x05})
require.Error(t, err)
assert.Empty(t, plainText)
})
t.Run("Too much additional data", func(t *testing.T) {
plainText, err := key.Decrypt(cipherText, []byte{0x05, 0x06, 0x07})
require.Error(t, err)
assert.Empty(t, plainText)
})
t.Run("Incorrect nonce", func(t *testing.T) {
// Flip the first byte of the nonce.
cipherText[0] = ^cipherText[0]
plainText, err := key.Decrypt(cipherText, []byte{0x05, 0x06})
require.Error(t, err)
assert.Empty(t, plainText)
})
t.Run("Incorrect ciphertext", func(t *testing.T) {
assert.Panics(t, func() {
key.Decrypt(nil, nil)
})
assert.Panics(t, func() {
cipherText := make([]byte, chacha20poly1305.NonceSizeX)
key.Decrypt(cipherText, nil)
})
})
})
}
func TestKeyingColumnAndID(t *testing.T) {
assert.EqualValues(t, []byte{0x74, 0x61, 0x62, 0x6c, 0x65, 0x3a, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, keying.ColumnAndID("table", math.MinInt64))
assert.EqualValues(t, []byte{0x74, 0x61, 0x62, 0x6c, 0x65, 0x3a, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, keying.ColumnAndID("table", -1))
assert.EqualValues(t, []byte{0x74, 0x61, 0x62, 0x6c, 0x65, 0x3a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, keying.ColumnAndID("table", 0))
assert.EqualValues(t, []byte{0x74, 0x61, 0x62, 0x6c, 0x65, 0x3a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, keying.ColumnAndID("table", 1))
assert.EqualValues(t, []byte{0x74, 0x61, 0x62, 0x6c, 0x65, 0x3a, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, keying.ColumnAndID("table", math.MaxInt64))
assert.EqualValues(t, []byte{0x74, 0x61, 0x62, 0x6c, 0x65, 0x32, 0x3a, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, keying.ColumnAndID("table2", math.MinInt64))
assert.EqualValues(t, []byte{0x74, 0x61, 0x62, 0x6c, 0x65, 0x32, 0x3a, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, keying.ColumnAndID("table2", -1))
assert.EqualValues(t, []byte{0x74, 0x61, 0x62, 0x6c, 0x65, 0x32, 0x3a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, keying.ColumnAndID("table2", 0))
assert.EqualValues(t, []byte{0x74, 0x61, 0x62, 0x6c, 0x65, 0x32, 0x3a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, keying.ColumnAndID("table2", 1))
assert.EqualValues(t, []byte{0x74, 0x61, 0x62, 0x6c, 0x65, 0x32, 0x3a, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, keying.ColumnAndID("table2", math.MaxInt64))
}
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